Terminal block and connections for telephone receivers



Dec. 29, 1925. 1,567,856

D. H. MOSS El AL TERMI AL BLOCK AND CONNECTIONS FOR TELEPHONE RECEIVERS Filed March 20, 1925 3 Sheets-Sheet 1 a I I .9 Ila mum H- Moss IYICHOLHS J. CELENZL AND W/W/IM f GER/Y5- ATTORNEY.

Dec. 29 1-925.

D. H. MOSS ET AL TERMINAL BLOCK AND CONNECTIONS FOR TELEPHONE RECEIVERS Filed March 20, 1925 3 Sheets-Sheet 2 DAV/D H. M055 INVENTORS. AI/CH LAS J. C A M0 WILL/HM H. GEE/VJ.

A TTORNE Y.

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D. H. Moss El AL TERMINAL BLOCK AND CONNECTIONS FOR TELEPHONE RECEIVERS Filed March 20, 1925 D4VID H. MOSS NICHOLAS CELEHZA.

AND

WILL/HM.

5 Sheets-Shget :5

GER/Y5.

ATTORNEY.

INVENTORJ.

45 devices Within the telephone receiver casing sidewall of the telephone re Patented Dec. 29, 1 925, v

UNITED sures DAVID H; MOSS, F NEWARK, NEW JERSEY, NlCHOLAS J. CELENZA, BROOKLYN,

NEWYYORK, AND WILLIAM -H. EGERNS, OF EAST GRANGE, NEW JERSEY, 'ASSIGNORS, .BY'CMESNE .KSSIGNMENTS, TO JBBJANDE$ LABORATORIES, INC., OF NEWARK, NEW JERSEY, A CORPORATION OF NEW :J' -ERSEY. j

TERMINAL BLOCK Am) CONNECTIONS FOR r'nmri'iorvnnncmvnns.

Application "filed March 20, 1925. sem No. 17-;051.

Tr U/wan may'co ncern: I *11'1ai'ntaining electrical COIlfttICt I'll Be it known that We, DAVID H. Mos's, times Niorroms J. CELENZA, and 'WILLIAM Our invention is" an improvement upon :50 Grnnns', residing at Newark, inthe county "the invention set iorth inapplication Serial 5 of Essex and State of N w Jersey, Brook- 'No. 672;'949,"filed November 5, 1923', filedsbv lyn m h nty of Kings and State of Frederick Dietrich, entitledElectrica'l con: Seyv York, and East Orange, in the county nectio'nsj ="-for telephone headsetsg We proof Essex and State of New Jersey, have 111- Vide a mechanical-arrangement o'f fixed out- 55 vented certain new and useful I-mprovestruck contactscarried Within a terminal ments in a Terminal 'Block and Connections block in the telephone receiver casing with for Telephone Receivers, of which the "folametallic follower-plate separate at ll lowing is a specification. times "from said 'fiired contacts by insulation,

Our invention relates broadly to electrof 'll w r =platehaving means whereby it no magnetic sound reproducers, and more pary be advanced ilithe direction f the im d ticularly to connections for telephone headutstrnc'k contacts to grip deformed flat tersets, minals against the fixed contacts for me- One of the objects of our invention is to ie y s u g t conductors i i provide a terminalblock and connections for v h lephone receiver casing and complete 65 telephone receivers in which rigid mechanical a Substantial electrical contact therewitln connections and good electrical contact may Thefixed elee'trical contacts-are housed withbe made between the flex ibl'e cords leading in aninsu'lat d "terminal l k he e into the external electrical circuit, anelectroteriorly' of the telephone receiver casing static shield surrounding the conductors, and with apertures registering with apertures in 70 the e'lectromagnets and case of the telephone One Slde 0f the telephone receiver casing in i such manner -that. a plurality of terminals,

Another object of our invention is to proa pair of which areemployed in conductvide a terminal block which may be posimg the telephone currents Wh11e a third is tion'ed interiorly of a telephone receiver e p oy d RS111 00nne0t10h"f0r the Shleld 75 casing and connections completed with flexiab u he t lephone Conductors may be ble conductors leading to the telephone resimultaneously clamped in the terminal i b a l m ing device operative from block and Inechanically locked mposition the exteriorof the telephone receiver casing, at the same tame that good electrical conthe clamping device being constructed of tact 1S Ihilde'bebweflll cllclllts mterlorlyvof 80 a metallic follower plate adapted to be adhe telepho e rece e d x ernal elccvancedor retracted upon rotatable screws tlleiil crl'onlts operated from the rear of the telephone re- Our invention Wlll be more clearly unccivcr; der'stood from the following specification Still another object of our invention is y c mp y g r g 85 to provide contact members Within thete1eforming Pfl f h which F 53" 1 1S 40 phone receiver casing and flat terminal deaplan v ewv eithe telephone 'recerver casvices on theendsof telephone-receivercords ing' show ng terminal block of our n with instruck and outst-ruck projections on Veh m arranged f e em;f g-' 9 R 51(19- the flat terminals arranged to cooperate vlevv of the telephone-receiver showing the on with outstruck projections on the terminal 'interior'teirninitls and the entrances in the i ceiver; Fig'i-l for rieidlv anohnringitheflexible conductors is an enlarged view of the terminal block u thin the telephone re:

within t1}? telephone re eiver 9$i hich if n Pillited-"vvi 5 spaced relation within the terminal block;

Fig. 6 is a fragmentary plan view of the terminal block illustrating the follower plate and insulating strip in plan spaced from the terminal block; Fig. 7 is a perspec- 19 tive view of the terminal block and flat terminals which are provided on the extremities of the telephone conductors; Fig. 8 is'an enlarged fragn'ientary section through the terminal block within the telephone receiver casing; Fig. 9 is an endview of one. of the flat outstruck and instruck terminal members employed on the extremities of the telephone conductors; Figs. 10 and 11 are plan and side views of the terminals used on the extremities of the telephone cords;

Figs. 12, 13 and 14 are views of the outstruck fixed terminals which we provide in the terminal block within the telephone receiver casing; and Fig. 15 is a perspectiveview of 95 one of the terminals which we provide on tion scale.

receiver.

E i m1 the extremity of the telephone cords.

Our invention is particularly applicable to telephone receiver construction where receivers are manufactured on a large produc- The connecting block and connections which we provide arev so securely anchored during the assembly process that good electrical connection may be maintained throughout the life of the telephone The terminal block and terminals therefore are simple in construction and capable of manufacture inexpensively on a quantity production basis. Our invent-ion has proved successful and eflieient in operation. 7

Referring more particularly to the drawings, reference character 1 designates the telephone receiver casing including therein permanent magnets 2, electromagnets 3 and terminal block 4 secured in position by kidney pieces 5 and 6. The telephone 1c ceiver is provided with a cap 7 The termi nal block 4 is substantially semi-circular in shape and contains a rectangular recess t, :in the lower portion of which there is positioned a set of fixed outstruck'contacts 9, 10 and 11; The contacts9 and 11 are shaped substantially in the formuof right angles and are provided at their central portions with outstruck contacts 9, 10 and 11*.

The fixed contacts are outstruck from the lower side thereof as represented at- 11" in Fig. 14 in such a manner that the upper portions of the contacts are;substantially raised forming an obstruction or obstacle over which flat terminals which are projected through apertures 12, 14 and 15 of the terminal block may be hooked and r gidly secured. The terminal block is provided with intermediate portions 16 and 17 which a members Letters Patent of follows:

in the casing 22 which is fanned out at 23,

2a and 25. Upon each extremityof'these conductors a flat terminal member 26," 2'7 and 28 is provided. The extremity of the terminal member is provided with a pair of projections represented at 28 and 28 which extend along the length of the terminal member 28 substantially at right angles to the line along which the projections 9 10 and 11 of the fixed contacts extend. By this arrangement of projections, a lock may be obtained by the abutment of the sets of contacts or the terminal members against the projections and the fixed contacts. After 1 the projections on the terminals which extend into the telephone receiver casing have been hooked over the projections formed on the contacts within the recess 8 of the terminal block, the screws 29 are operated from the exterior of the telephone receiver casing and advance the follower plate 20 in .the direction of the recess in the terminal block.

Insulated plate 30 havin apertures 30 corresponding to the upwardly extending guides 16 and 17 on the terminal block, is disposed between the metallic follower plate 20 and the contact members 26, 27 and 28 preventing short circuit thereof while securing the mechanical strength of the metallic follower plate.

It will be observed that by the arrangement of the projections of the terminal extending substantially at an angle to the project-ions on the contacts within the telephone receiver casing we are enabled to anchor the terminal members within the telephone receiver casing and obtain a permanent and substantial electrical contact. By this mechanical arrange ment the telephone headsets after they have once passed factory inspection may be depended upon to retain their origii'ial mechanical and electrical characteristics.

While we have described our invention in certain particular embodiments. we desire it to be understood that modifications may be made; and that; we intend no limitations upon the invention other than are imposed by the scope'of the appended claims.

What we claim and desire .to secure by 1. Connections for electromagnetic sound reproducers comprising in combination a the United States is as Elli) including a rectangular recess, a plurality of flat outstruck contact projections within said recess, and a pluralityof flat terminal members formed on the extremities of flexible conductors projecting into said terminal block, each ofisaidlfiat terminal members having outstruck and instrucl: portions adapted to be locked'over the outstruck projections of said flat terminals, and means for clamping said flat terminal members in substantially locked position.

2. Connections for electromagnetic sound reproducers comprising in combination, a casing, an electromagnetic operating mechanism arranged therein, a terminal block including a rectangular recess, a plurality of flat outstruck contact projections Within said recess, extending in the direction of said recess, a plurality of flat terminal memhers formed on the extremity of flexible conductors, projecting into said terminal block, each of said flat terminal members having outstruck and instrucx portions extending in the direction of the length of said terminals adapted to be looked over the outstruck projections of said flat terminals in abutment With the outstruck project-ions on said contacts, and means for clamping said flat terminal members. in substantially locked position.

3. Connections for electromagnetic sound reproducers comprising in combination, a casing, an electromagnetic operating mechanism arranged therein, a terminal block including a rectangular recess, a plurality of contacts insulated one from another, each of said contacts having outstruck projections extending up into said rectangular recess aligned in the direction of the longitudinal axis of said recess and substantially in the center thereof, a plurality of flexible conductors, flat terminal members formed on the extremities of said conductors, said flat terminal members having projections extending along the length thereof sub stantially at right angles to the direction of the projections on said contacts Whereby the projections on said terminals may be looked over and abut against the projections on said contacts, and means for clamp ing said flat terminal members in said locked position.

--l. Connections for electromagnetic sound re n'oducers comprising in combination, a casing, an electromagnetic operating mechanism arranged therein, a terminal block including a rectangular recess, a plurality of flat contacts positioned Within said rec- (angular recess and having upwardly extending projections in the direction of the longitudinal axis of said recess, a plurality of fiat contact terminals arranged to extend into said terminal block and into said rectangular recess, each of said contacts having p oj c io s e t nding long the length thereof and arranged to form abutment members in cooperation with thenp- Wardly, extending projections I on said contacts, and means tor"clamping said flat terminal members in substantially locked position with respect to said contacts.

I 5. Connections for electromagnetic sound reproducers comprising in combination, a casing, an electromagnetic operating mechanism arranged therein, a terminal block including a rectangular recess, a plurality of contact members positioned Within said recess each having a projection extending in a central line along said recess, a plurality of flat terminal members arranged to project into said recess and having projections thereon extending substantially at right angles to said afore-mentioned projections, and means for clamping said terminal members in locked position with the respective projections in abutment for securing a rigid mechanical and good electrical contact between said terminals and said contacts.

6. Connections for electromagnetic sound reproducers comprising in combination, a casing, an electromagnetic operating mechanism arranged therein, a terminal block including a rectangular recess, a plurality of fiat contacts disposed Within said rectangular recess, outstruck projections on said contacts, a plurality of flat terminal members formed on the extremity of flexible conductors arranged to extend into said terminal block, each of said flat terminal members having projections thereon disposed at right angles to said aforementioned projections on said contacts, and means for clamping said terminals against said contacts whereby the projections on said lerminals abut against the projections on said contacts.

7. Connections for electromagnetic sound reproducers comprising in combination, a casing, an electromagnetic operating mechanism arranged therein, a terminal block including a rectangular recess, a plurality of fiat contacts positioned Within said recess and each having an upwardly extending projection, a plurality of flexible conductors having flat terminal members arranged to extend Within said recess, each of said terminal members having projections thereon extending substantially at an angle to the projections on said contacts and means for clamping said terminals against said contacts for securing a rigid mechanical and electrical connection between said terminals and said contacts.

8. Connections for electromagnetic sound reproducers comprising in combination, a casing, an electromagnetic operating mecha nism arranged therein, a terminal block including a rectangular recess, a plurality of flat contact members positioned Within Said recess and each having an upwardly tending projection, a plurality of flexible conductors adapted to enter said casing, fiat terminal members positioned on the extremity of each of said conductors and having projections extending in opposite directions, each substantially at right angles to the projections on said contact members and adapted to abut With the projections on said contact members, and means for clamping, said fiat terminal members against said flat HP contact members for completing the substa ntial and electrical connection therebetwecn.

DAVID H. MOSS. NICHOLAS J. CELENZA. WILLIAM H. GERNS. 

